Perhaps you should try some spelling variations:
cua nhung » va nhung
tieu sach » chieu sach, dien sach, te sach
anh nang » ganh nang, anh dang, anh sang
anh bang » anh hoang, anh quang, tinh bang
cong van » cong vang, cong san, song van
cong tac » cong ty
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sach - ((anh nang) or (anh bang)) cua nhung ((cong van) or (cong tac)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - ((anh nang) OR (anh bang)) cua nhung ((cong van) OR (cong tac)) toan tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((anh nang) or (anh bang)) cua nhung ((cong van) or (cong tac)) toan tap*.